Ensure calling #api_key_header overwrites the previously written HTTP_AUTHORIZATION header
Ensure calling #api_key_header overwrites the previously written HTTP_AUTHORIZATION header

Signed-off-by: Nick Quaranto <75ef9faee755c70589550b513ad881e5a603182c@quaran.to>

1337807/rubygems.org,rubygems/rubygems.org-backup,square/rubygems.org,rubygems/rubygems.org-backup,dstrctrng/private_event,bpm/getbpm.org,1337807/rubygems.org,square/rubygems.org,1337807/rubygems.org,bpm/getbpm.org,dstrctrng/private_event,square/rubygems.org,alloy/gemcutter,alloy/gemcutter,rubygems/rubygems.org-backup